quaff (kwaaff) - The revolting burp one has just before vomit spews from one's esophagus, at which point one knows there is no turning back (Here come da puke).

She could not hold it any longer. A deafening quaff rumbled her entrails like rolling thunder. In a split second her jaw shot down and her tongue stuck out as an ocean of scotch and macaroni spewed from her esophagus, filling her mouth. She tried to contain it, but with each heave, more vomit spewed from her lips and onto her guests. No, Hillary Rodham Clinton would not be winning the presidency this year.